Vietnam Asia Source: Gerpacio, R. Areaplanted to improved germplasm Total maize area ... of hybrid cultivars. Asian farmers outside of China and Thailand primarily plant ... breeders either have to try to disseminate their improvedvarieties through

Late planting is a major problem in most rice-wheat areas, except ... results. However, in other areas, high-yielding, modern rice varieties are grown ... This is the case in the Indian Punjab, where modern rice varieties are planted early, harvested